Choose the best answer II — task. Science State Board, Class 8.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1. Which of the following statements made by Dalton has not undergone any change?

Atoms combine in small, whole numbers to form compounds
All atoms of an elements are alike
Elements are made up of atoms
Atoms cannot be broken

2. In all atoms of an element __________.

both atomic and mass numbers may vary
the atomic number is same and the mass number is different
the atomic and the mass number are same
the mass number is same and the atomic number is different

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